922-64-5

Basic information

• Product Name: vinylidene cyanide
• Synonyms: vinylidene cyanide;1,1-Dicyanoethylene;Ethene-1,1-dicarbonitrile;Methylenemalononitrile;Vinylidenedicyanide
• CAS NO: 922-64-5
• Molecular Formula: C₄H₂N₂
• Molecular Weight: 78.0721
• Mol File: 922-64-5.mol
• Article Data: 2

Chemical Properties

• Melting Point: 206-207 °C
• Boiling Point: 167.1°Cat760mmHg
• Flash Point: 66.7°C
• Appearance: /
• Density: 1.024g/cm³
• Vapor Pressure: 1.73mmHg at 25°C
• Refractive Index: 1.437
• CAS DataBase Reference: vinylidene cyanide(CAS DataBase Reference)
• NIST Chemistry Reference: vinylidene cyanide(922-64-5)
• EPA Substance Registry System: vinylidene cyanide(922-64-5)

Safety Data

• Hazardous Substances Data: 922-64-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C4H2N2/c1-4(2-5)3-6/h1H2

Upstream product

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• 98451-46-8 3-(2,2-Di-p-tolyl-vinyl)-cyclobutane-1,1,2,2-tetracarbonitrile 
• 100036-26-8 3-[2,2-Bis-(3-fluoro-phenyl)-vinyl]-cyclobutane-1,1,2,2-tetracarbonitrile 
• 100036-27-9 3-[2,2-Bis-(3-chloro-phenyl)-vinyl]-cyclobutane-1,1,2,2-tetracarbonitrile 
• 100036-28-0 3-[2,2-Bis-(3-trifluoromethyl-phenyl)-vinyl]-cyclobutane-1,1,2,2-tetracarbonitrile 
• 460-19-5 ethanedinitrile 
• 107-13-1 acrylonitrile 
• 3695-98-5 propane-1,1,3,3-tetracarbonitrile 

Downstream Products

• 5553-90-2 2-(naphthalen-2-ylmethyl)malononitrile 
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• 106592-61-4 4-amino-3,5,5-tricyano-cyclohex-3-ene-1,1-dicarboxylic acid diethyl ester 
• 5553-94-6 (5-chloro-2-methoxy-benzyl)-malononitrile 
• 5553-89-9 (2,5-dimethyl-benzyl)-malononitrile 
• 101936-34-9 (2-benzoyl-3-oxo-3-phenyl-propyl)-malononitrile 
• 91634-99-0 4-aminocyclohex-4-ene-1,1,3,3,5-pentacarbonitrile 
• 99057-53-1 2-amino-5-methyl-5-nitro-cyclohex-2-ene-1,1,3-tricarbonitrile 
• 100969-69-5 2-benzoyl-4,4-dicyano-butyric acid ethyl ester 
• 99981-39-2 methyl-(1-methyl-cyclohexyl)-malononitrile 
• 5553-92-4 2-(4-methoxybenzyl)malononitrile 
• 500797-24-0 cyclohex-3-ene-1,1-dicarbonitrile 
• 5553-87-7 (2,4-dimethyl-benzyl)-malononitrile 
• 99845-23-5 (benzylsulfanyl-methyl)-malononitrile 

Relevant articles and documents

Reaktion von trans-1-Arylbutadienen und 1,1-Diarylbutadienen mit Tetracyanethylen (TCNE) und 2,2-Bis(trifluormethyl)ethylen-1,1-dicarbonitril (BTF): Kinetische Studie

Kinetic data (substituent effects, solvent effects, activation parameter) are reported for the reactions of trans-1-arylbutadienes 1 and 1,1-diarylbutadienes 3 with TCNE 4 and BTF 5. (2+2)- and (4+2)-cycloadducts 7 respectively 9 can rearrange or undergo cycloreversions with quite different reaction rates depending on the substituent in the aryl-ring.